Anti-locking high-frequency program control ball valve

Abstract

The utility model belongs to the technical field of control ball valves, and discloses an anti-locking high-frequency program control ball valve which comprises a main valve body and valve covers arranged on the left side and the right side of the main valve body. A spiral wound gasket and a ring are installed between the main valve body and the valve deck, the spiral wound gasket is located below the ring, a ball is arranged in the center of the interior of the main valve body, and a valve seat is arranged on each of the two sides of a flow channel of the ball. Through cooperation of the shape ring, the spring ring, the valve seat pressing ring and the belleville spring, the problems that solid particles enter gaps and cannot be discharged, powder particles are accumulated for a long time, the valve is easily blocked, and the interior of the device is prevented from being blocked can be avoided; therefore, the phenomenon that the interior of the device is stuck is avoided, the working efficiency of the device is improved, and meanwhile the valve has the advantages of being stable in torque and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball control valves, in particular to a high-frequency program-controlled ball valve that is anti-stuck. Background Art

[0002] The control ball valve, also known as the control ball valve, is an instrument widely used in many scientific and engineering fields, especially in the fields of mechanics, basic disciplines of engineering and technology science, mechanical engineering, power and electrical engineering.

[0003] A ball control valve is a valve that controls the flow of fluid by rotating the ball. It has the characteristics of simple structure, good sealing and easy operation.

[0004] The current existing lower connecting shaft structure is that a bearing is embedded in the lower shaft hole of the sphere, the bottom cover passes through the lower part of the valve body and is inserted into the bearing hole for positioning, the bottom cover is equipped with an O-ring and a spiral wound gasket, and the bolts press the bottom cover to achieve static sealing. Since the bearing is directly exposed to the medium, solid particles are very likely to enter the gap and cannot be discharged. The long-term accumulation of powder particles can easily cause the valve to get stuck, so it needs to be modified and optimized. Utility Model Content

[0005] The purpose of the utility model is to provide a high-frequency program-controlled ball valve that is anti-stuck, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above object, the utility model provides the following technical solutions: an anti-seizure high-frequency program-controlled ball valve, comprising a main valve body and a valve cover, wherein the valve cover is arranged on the left and right sides of the main valve body;

[0007] A spiral wound gasket and a grommet are installed between the main valve body and the valve cover. The spiral wound gasket is located below the grommet. A sphere is provided in the inner center of the main valve body. A valve seat is provided on both sides of the flow channel of the sphere. The valve seat is fixedly connected to the mounting hole on the inner side of the valve cover. A grommet is installed in the outer groove of the valve seat. A flooded ring is installed at the tail of the valve seat. A valve seat pressure ring and a disc spring are respectively installed on the back of the valve seat. The disc spring is located between the valve seat pressure ring and the valve cover. A lower shaft hole is opened at the bottom of the sphere.

[0008] Preferably, a pivot is installed at the bottom of the main valve body, the top of the pivot passes through the upper and lower sides of the main valve body and extends to the inside of the lower shaft hole, a grommet is installed inside the sphere, the pivot is fixedly connected to the sphere by screws, the shaft hole of the main valve body and the outer circle of the pivot form an annular hole, and a group of dust-proof packing, gaskets, bearings and disc springs are installed in sequence inside the annular hole from the inside to the outside, the spiral wound gasket is fixedly connected to the main valve body by bolts, and a bottom cover is fixedly installed on the bottom of the main valve body.

[0009] Preferably, a valve stem is installed in the upper shaft hole of the main valve body, the lower part of the valve stem is inserted into the upper shaft hole of the sphere, a pin is installed at the connection between the valve stem and the sphere, and two thrust pads are installed on the upper part of the step of the valve stem.

[0010] Preferably, a high-neck stuffing box is installed on the outside of the valve stem, the bottom of the high-neck stuffing box is fixedly connected to the main valve body, a spiral wound gasket is also provided inside the ring groove at the bottom of the high-neck stuffing box, and the upper shaft hole of the high-neck stuffing box is respectively installed with bearings, stuffing pads, stuffing, stuffing retaining rings, a stuffing sleeve with a bearing inside, and a stuffing pressure plate from the inside to the outside.

[0011] Preferably, the lower shaft hole is aligned with the lower shaft hole of the main valve body, and the lower shaft hole is in the form of an outer conical surface and an inner cylindrical surface.

[0012] Preferably, there are two groups of dustproof fillers, gaskets, bearings and disc springs, one group is arranged inside the annular hole formed by the main valve body shaft hole and the outer circle of the pivot, and the other group is arranged inside the shaft hole on the main valve body.

[0013] Preferably, a dust ring is designed in the inner hole of the packing pressure plate, and the packing pressure plate is tightened by a bolt equipped with a dynamic load disc spring group.

[0014] Preferably, the end of the pivot is flat, the pivot fits tightly with the shaft hole of the sphere, and the dust-proof filler adopts a V-shaped structure design.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model can prevent solid particles from entering the gap and being unable to be discharged through the cooperation of the ring, the plug ring, the valve seat pressure ring and the disc spring. The long-term accumulation of powder particles can easily cause the valve to be stuck, thereby avoiding the internal jamming of the device. Compared with the traditional device, the device prevents the occurrence of internal jamming of the device by blocking particles from entering the interior of the device, thereby improving the working efficiency of the device. At the same time, it has the advantages of stable valve torque and long valve service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A local enlarged schematic diagram of point A;

[0019] Figure 3 For this utility model Figure 1 A local enlarged schematic diagram of point B;

[0020] Figure 4 For this utility model Figure 1 A local enlarged schematic diagram of point C;

[0021] Figure 5 This is a schematic diagram of the bottom structure of the sphere of the present invention.

[0022] In the figure: 1. Main valve body; 2. Valve cover; 3. Ball; 4. Valve seat; 5. O-ring; 6. Universal plug ring; 7. Valve seat pressure ring; 8. Disc spring; 9. Pivot; 10. O-ring; 11. Dustproof packing; 12. Gasket; 13. Bearing; 14. Disc spring; 15. Spiral wound gasket; 16. Bottom cover; 17. Pin; 18. Valve stem; 19. Thrust pad; 20. Bearing; 21. High-neck stuffing box; 22. Packing pad; 23. Packing; 24. Packing retaining ring; 25. Packing gland; 26. Packing pressure plate; 27. Lower shaft hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 5 As shown, the embodiment of the utility model provides an anti-seizure high-frequency program-controlled ball valve, comprising a main valve body 1 and a valve cover 2, wherein the valve cover 2 is arranged on the left and right sides of the main valve body 1;

[0025] A spiral wound gasket 15 and an O-ring 10 are installed between the main valve body 1 and the valve cover 2. The spiral wound gasket 15 is located below the O-ring 10. A sphere 3 is provided in the inner center of the main valve body 1. A valve seat 4 is provided on both sides of the flow channel of the sphere 3. The valve seat 4 is fixedly connected to the mounting hole on the inner side of the valve cover 2. An O-ring 5 is installed inside the outer groove of the valve seat 4. A flooded ring 6 is installed at the tail of the valve seat 4. A valve seat pressure ring 7 and a disc spring 8 are respectively installed on the back of the valve seat 4. The disc spring 8 is located between the valve seat pressure ring 7 and the valve cover 2. A lower shaft hole 27 is opened at the bottom of the sphere 3.

[0026] The cooperation of the O-ring 5, the universal seal ring 6, the valve seat pressure ring 7 and the disc spring 8 can prevent solid particles from entering the gap and being unable to be discharged. The long-term accumulation of powder particles can easily cause the valve to jam, thus avoiding internal jamming of the device. Compared with traditional devices, this device prevents internal jamming of the device by blocking particles from entering the interior of the device, thereby improving the working efficiency of the device. At the same time, it has the advantages of stable valve torque and long valve service life.

[0027] Among them, a pivot 9 is installed at the bottom of the main valve body 1, and the top of the pivot 9 passes through the upper and lower sides of the main valve body 1 and extends to the inside of the lower shaft hole 27. An O-ring 10 is installed inside the sphere 3. The pivot 9 is fixedly connected to the sphere 3 by screws. The shaft hole of the main valve body 1 and the outer circle of the pivot 9 form an annular hole. A group of dust-proof packing 11, gasket 12, bearing 13 and disc spring 14 are installed in sequence inside the annular hole from the inside to the outside. The spiral wound gasket 15 is fixedly connected to the main valve body 1 by bolts, and a bottom cover 16 is fixedly installed at the bottom of the main valve body 1.

[0028] The disc spring 14 is designed to provide a continuous pre-tightening effect on the dustproof filler 11, thereby preventing the filler 23 from wearing out and losing the loading force, and at the same time ensuring that the dustproof effect of the bearing 20 is continuous and effective.

[0029] Among them, a valve stem 18 is installed in the upper shaft hole of the main valve body 1, and the lower part of the valve stem 18 is inserted into the upper shaft hole of the sphere 3. A pin 17 is installed at the connection between the valve stem 18 and the sphere 3, and two thrust pads 19 are installed on the upper part of the step of the valve stem 18.

[0030] By rotating or lifting the valve stem 18, the up and down or rotational movement of the ball 3 can be precisely controlled to realize the opening and closing of the device, thereby facilitating the improvement of the sealing performance of the device.

[0031] Among them, a high-necked stuffing box 21 is installed on the outside of the valve stem 18. The bottom of the high-necked stuffing box 21 is fixedly connected to the main valve body 1. A spiral wound gasket 15 is also provided inside the ring groove at the bottom of the high-necked stuffing box 21. The upper shaft hole of the high-necked stuffing box 21 is respectively installed with a bearing 20, a stuffing pad 22, a stuffing 23, a stuffing retaining ring 24, a stuffing sleeve 25 with a bearing inside, and a stuffing pressure plate 26 from the inside to the outside.

[0032] By designing the packing pad 22, the packing 23 and the packing retaining ring 24, the sealing performance inside the device is enhanced, thereby preventing particles in the environment from entering the device.

[0033] The lower shaft hole 27 is aligned with the lower shaft hole of the main valve body 1 , and the lower shaft hole 27 is in the form of an outer conical surface and an inner cylindrical surface.

[0034] The design of the lower shaft hole 27 and the main valve body 1 facilitates the pivot 9 to fit tightly with the lower shaft hole 27 without any assembly gap.

[0035] Among them, there are two groups of dustproof packing 11, gasket 12, bearing 13 and disc spring 14, one group is arranged inside the annular hole formed by the shaft hole of the main valve body 1 and the outer circle of the pivot 9, and the other group is arranged inside the shaft hole on the main valve body 1.

[0036] The design of the dustproof packing 11, the backing ring 12, the bearing 13 and the disc spring 14 prevents the packing 23 from losing its loading force, thereby improving the sealing effect of the device.

[0037] Among them, a dust ring is designed in the inner hole of the packing pressure plate 26, and the packing pressure plate 26 is pressed by bolts equipped with a dynamic load disc spring group.

[0038] The design of the dust ring prevents external dust, sand, water and pollutants from mixing into the reciprocating seal inside the device. It can effectively remove dust attached to the internal surface of the device and prevent these impurities from entering the sealed device, thereby protecting the internal components of the device from wear and corrosion.

[0039] The end of the pivot 9 is flat, the pivot 9 fits tightly with the shaft hole of the sphere 3, and the dustproof filler 11 adopts a V-shaped structure design.

[0040] The design of the dustproof packing 11 can better ensure the sealing between the sight pivot 9 and the valve stem 18 .

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-frequency program-controlled ball valve with an anti-seizure function, comprising a main valve body (1) and a valve cover (2), characterized in that: The valve cover (2) is arranged on the left and right sides of the main valve body (1); A wound gasket (15) and an O-ring (10) are installed between the main valve body (1) and the valve cover (2), and the wound gasket (15) is located below the O-ring (10). A sphere (3) is provided at the inner center of the main valve body (1), and a valve seat (4) is provided on both sides of the flow channel of the sphere (3). The valve seat (4) is fixedly connected to the mounting hole on the inner side of the valve cover (2). An O-ring (5) is installed inside the outer groove of the valve seat (4), and a universal ring (6) is installed at the tail of the valve seat (4). A valve seat pressure ring (7) and a disc spring (8) are respectively installed on the back of the valve seat (4), and the disc spring (8) is located between the valve seat pressure ring (7) and the valve cover (2). A lower shaft hole (27) is opened at the bottom of the sphere (3).

2. The anti-seizure high-frequency program-controlled ball valve according to claim 1, characterized in that: A pivot (9) is installed at the bottom of the main valve body (1), and the top of the pivot (9) passes through the upper and lower sides of the main valve body (1) and extends to the inside of the lower shaft hole (27). An O-ring (10) is installed inside the sphere (3). The pivot (9) is fixedly connected to the sphere (3) by screws. The shaft hole of the main valve body (1) and the outer circle of the pivot (9) form an annular hole. A group of dustproof fillers (11), gaskets (12), bearings (13) and disc springs (14) are installed in sequence inside the annular hole from the inside to the outside. The spiral wound gasket (15) is fixedly connected to the main valve body (1) by bolts. A bottom cover (16) is fixedly installed at the bottom of the main valve body (1).

3. The anti-seizure high-frequency program-controlled ball valve according to claim 1, characterized in that: A valve stem (18) is installed in the upper shaft hole of the main valve body (1), and the lower part of the valve stem (18) is inserted into the upper shaft hole of the sphere (3). A pin (17) is installed at the connection between the valve stem (18) and the sphere (3), and two thrust pads (19) are installed on the upper part of the step of the valve stem (18).

4. The anti-seizure high-frequency program-controlled ball valve according to claim 3, characterized in that: A high-necked stuffing box (21) is installed on the outside of the valve stem (18). The bottom of the high-necked stuffing box (21) is fixedly connected to the main valve body (1). A spiral wound gasket (15) is also provided inside the annular groove at the bottom of the high-necked stuffing box (21). A bearing (20), a stuffing pad (22), a stuffing (23), a stuffing retaining ring (24), a stuffing sleeve (25) with a bearing inside, and a stuffing pressure plate (26) are installed inside the upper shaft hole of the high-necked stuffing box (21) from the inside to the outside.

5. The anti-seizure high-frequency program-controlled ball valve according to claim 1, characterized in that: The lower shaft hole (27) is aligned with the lower shaft hole of the main valve body (1), and the lower shaft hole (27) is in the form of an outer conical surface and an inner cylindrical surface.

6. The anti-seizure high-frequency program-controlled ball valve according to claim 2, characterized in that: There are two groups of dustproof fillers (11), backing rings (12), bearings (13) and disc springs (14), one group is arranged inside the annular hole formed by the main valve body (1) shaft hole and the outer circle of the pivot (9), and the other group is arranged inside the shaft hole on the main valve body (1).

7. The anti-seizure high-frequency program-controlled ball valve according to claim 4, characterized in that: The inner hole of the packing pressure plate (26) is designed with a dust ring, and the packing pressure plate (26) is pressed by a bolt equipped with a dynamic load disc spring group.

8. The anti-seizure high-frequency program-controlled ball valve according to claim 2, characterized in that: The end of the pivot (9) is flat, the pivot (9) is tightly fitted with the shaft hole of the sphere (3), and the dustproof filler (11) adopts a V-shaped structural design.

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